U.S. patent application number 10/991734 was filed with the patent office on 2006-05-18 for charcoal roaster.
Invention is credited to Dick Chiang.
Application Number | 20060102162 10/991734 |
Document ID | / |
Family ID | 36384874 |
Filed Date | 2006-05-18 |
United States Patent
Application |
20060102162 |
Kind Code |
A1 |
Chiang; Dick |
May 18, 2006 |
Charcoal roaster
Abstract
A. charcoal roaster has a stand having a top and an ash bin, a
bottommost layer detachably mounted on the top of the stand, at
least one containing layer detachably mounted on the bottommost
layer and a grill assembly detachably mounted on the at least one
containing layer. The bottommost layer and the at least one
containing layer individually have multiple ventilating holes so
fresh air is drawn into each layer to make charcoal burn
efficiently without having to be stirred even when charcoal is
stacked thickly. Each containing layer and the bottommost layer
directs fresh air into deep places inside the charcoal roaster.
Moreover, by adding or removing containing layers, the quantity of
charcoal is adjustable.
Inventors: |
Chiang; Dick; (Taichung,
TW) |
Correspondence
Address: |
Jackson Walker L.L.P.
Suite 2100
112 E. Pecan Street
San Antonio
TX
78205
US
|
Family ID: |
36384874 |
Appl. No.: |
10/991734 |
Filed: |
November 18, 2004 |
Current U.S.
Class: |
126/25R ;
126/25B; 126/9R |
Current CPC
Class: |
A47J 37/0704
20130101 |
Class at
Publication: |
126/025.00R ;
126/009.00R; 126/025.00B |
International
Class: |
F24B 3/00 20060101
F24B003/00 |
Claims
1. A charcoal roaster comprising: a stand (10) having a top; and an
ash bin (12) mounted in the stand (10) near the top; a bottommost
layer (20) mounted on the top of the stand (10), being a shallow
bowl and having a bottom (22); a grating (222) formed on the bottom
(22); and an upper inclined wall (24) extending inward and having
multiple ventilating holes (242); at least one containing layer
(30) mounted concentrically on the bottommost layer (20), and each
one of the at least one containing layer (30) being an annular ring
and having an upper inclined wall (32) and a lower inclined wall
(34), both walls extending inward, wherein the at least one
containing layer (30) individually has multiple ventilating holes
(322) defined in the upper inclined wall (32) of the at least one
containing layer (30); and a grill assembly (40) detachably mounted
on the at least one containing layer (30).
2. The charcoal roaster as claimed in claim 1, wherein the charcoal
roaster has at least two containing layers (30) and each one of the
at least two containing layers (30) is larger than an adjacent one
below; the upper inclined wall (32) extends inward and upward and
has a top opening and a diameter defined at the top opening; the
lower inclined wall (34) extends inward and downward and has a
bottom opening and a diameter defined at the bottom opening;
wherein, the diameter of the lower inclined wall (34) is smaller
than the diameter of the upper inclined wall (32) on an adjacent
containing layer (30) below so that part of the lower inclined wall
(34) of each containing layer (30) extends into an inner space
within the adjacent containing layer (30) below to guide air
between two adjacent containing layers (30).
3. The charcoal roaster as claimed in claim 1, wherein the stand
(10) has a pedestal (102); and a conical body (104) mounted on the
pedestal (102) and having an open top and multiple ventilating
holes (106) defined through the conical body (104).
4. The charcoal roaster as claimed in claim 2, wherein the stand
(10) has a pedestal (102); and a conical body (104) mounted on the
pedestal (102) and having an open top and multiple ventilating
holes (106) defined through the conical body (104).
5. The charcoal roaster as claimed in claim 4, wherein the grill
assembly (40) comprises: a base (41) having a lower inclined wall
extending into a topmost one of the at least one containing layer
(30); a grill (42) detachably mounted on the base (41) and having a
handle; and a cover (44) detachably mounted on the grill (42).
Description
BACKGROUND OF THE INVENTION
[0001] 1. Field of the Invention
[0002] The present invention relates to a roaster and more
particularly to a charcoal roaster that burns charcoal
efficiently.
[0003] 2. Description of Related Art
[0004] With reference to FIG. 5, a conventional charcoal roaster
substantially comprises a stand (50), a charcoal container (52) and
a grill (54). The charcoal container (52) is a basin with a bottom
and mounted on the stand (50) to hold charcoal. The grill (54) is
mounted on the charcoal container (52) over the charcoal. Food (not
shown) is placed on the grill (54), and the charcoal burns to
provide heat to roast the food. However, some charcoal stacked
inside the charcoal container (52) does not ignite easily and does
not spread fire quickly to other charcoal especially when the
charcoal is covered at the bottom of the basin. Therefore, users
have to stir the stacked charcoal occasionally to make the charcoal
burn efficiently.
[0005] The present invention has arisen to mitigate or obviate the
disadvantages of the conventional charcoal roaster.
SUMMARY OF THE INVENTION
[0006] The main objective of the present invention is to provide an
improved charcoal roaster that burns charcoal efficiently without
having to stir the charcoal.
[0007] To achieve the foregoing objective, the charcoal roaster of
the present invention comprises a stand, a bottommost layer, at
least one containing layer and a grill assembly. The stand has a
top and an ash bin. The bottommost layer is mounted on the top of
the stand, is a shallow bowl and has a bottom, a grating and an
upper inclined wall. The grating is formed on the bottom, and the
upper inclined wall extends inward and has multiple ventilating
holes.
[0008] The at least one containing layer is mounted concentrically
on the bottommost layer, and each containing layer is an annular
ring. and has an upper inclined wall and lower inclined wall. Both
walls extend inward, and the upper inclined wall has multiple
ventilating holes. The grill assembly is mounted detachably on the
at least one containing layer. By adding or removing containing
layers on the stand, the quantity of charcoal is adjustable.
Moreover, the multiple ventilating holes in each containing layer
and the bottommost layer allow air to be drawn into the roaster at
all levels. Therefore, the charcoal in the charcoal roaster burns
efficiently without needing to be stirred.
[0009] Further benefits and advantages of the present invention
will become apparent after a careful reading of the detailed
description with appropriate reference to the accompanying
drawings.
BRIEF DESCRIPTION OF THE DRAWINGS
[0010] FIG. 1 is an exploded perspective view of a charcoal roaster
in accordance with the present invention;
[0011] FIG. 2 is a perspective view of the charcoal roaster in FIG.
1;
[0012] FIG. 3 is an enlarged operational cross-sectional side view
of inclined walls in the charcoal roaster in FIG. 2;
[0013] FIG. 4 is an operational side view in partial section of the
charcoal roaster in FIG. 1, wherein air enters each containing
layer to make the charcoal burn efficiently; and
[0014] FIG. 5 is an operational cross-sectional side view of in
partial section of a conventional charcoal roaster in accordance
with the prior art.
DETAILED DESCRIPTION OF THE INVENTION
[0015] A charcoal roaster in accordance with the present invention
comprises a stand, a bottommost layer, at least one containing
layer and a grill assembly. The stand has a top and an ash bin. The
bottommost layer is mounted on the top of the stand, is a shallow
bowl and has a bottom, a grating and an upper inclined wall. The
grating is formed on the bottom, and the upper inclined wall
extends inward and has multiple ventilating holes. The at least one
containing layer is mounted concentrically on the bottommost layer,
and each containing layer is an annular ring and has an upper
inclined wall and a lower inclined wall. Both walls extend inward,
and the upper inclined wall has multiple ventilating holes. The
grill assembly is mounted detachably on the at least one containing
layer.
[0016] By adding or removing containing layers on the stand, the
quantity of charcoal is adjustable. Moreover, the multiple
ventilating holes in each containing layer and the bottommost layer
allow air to be drawn into the roaster at all levels. Therefore,
the charcoal in the charcoal roaster burns efficiently without
needing to be stirred.
[0017] With reference to FIGS. 1 and 2, a preferred embodiment of
the charcoal roaster in accordance with the present invention
comprises a stand (10), a bottommost layer (20), at least one
containing layer (30) and a grill assembly (40).
[0018] The stand (10) has a round pedestal (102), a conical body
(104) and an ash bin (12). The conical body (104) is mounted on the
round pedestal (102), has an open top and multiple optional
ventilating holes (106) and is tapered toward the open top. The
multiple ventilating holes (106) are near the open top. The ash bin
(12) is mounted detachably inside the cone body (104) at the open
top.
[0019] The bottommost layer (20) is mounted on the open top of the
stand (10), is a shallow bowl and has a bottom (22) and an upper
inclined wall (24). The bottom (22) is round and has a center and a
grating (222). The grating (222) is mounted in the center of the
bottom (22) to allow ash to fall into the ash bin (12) in the stand
(10) after the charcoal burns. The upper inclined wall (24) evenly
extends inward and upward and has a top opening and multiple
ventilating holes (242). The top opening has a diameter. The
multiple ventilating holes (242) are evenly spaced around the upper
inclined wall (24).
[0020] The at least one containing layer (30) is mounted over the
bottommost layer (20) one by one, and each containing layer (30) is
larger than the adjacent containing layer (30) below. Each
containing layer (30) is also an annular ring similar to the
shallow bowl of the bottommost layer (20) except for the grating
(222) in the bottom (22) and has an upper inclined wall (32), a
lower inclined wall (34) and an inner space. The upper inclined
wall (32) extends inward and upward and has multiple ventilating
holes (322) and a top opening that has a diameter. The lower
inclined wall (34) extends inward and downward and has a bottom
opening that has a diametersmaller than the diameter of the upper
inclined wall (32) on an adjacent containing layer (30) below. With
regard to the lowest containing layer (30), the diameter of the
lower inclined wall (34) is smaller than the diameter of the upper
inclined wall (24) of the bottommost layer (20). Therefore, part of
the lower inclined wall (34) of each containing layer (30) extends
into the inner space within the adjacent containing layer (30)
below to guide air flowing between adjacent containing layers
(30).
[0021] The grill assembly (40) is mounted detachably on a topmost
containing layer (30) and essentially comprises a base (41), a
grill (42) and a cover (44). The base (41) has a lower inclined
wall. The lower inclined wall of the base (41) extends into the
topmost containing layer (30) and preferably has a bottom opening
with a diameter. Therefore, part of the lower inclined wall (34)
extends into the inner space in the topmost containing layer (30)
to guide air flowing through the ventilating holes (322) in the
containing layer (30). The grill (42) is detachably mounted on the
base (41) and has a handle. The cover (44) is detachably mounted on
the grill (42) to hold heat to roast food on the grill (42).
[0022] With reference to FIGS. 3 and 4, when the charcoal roaster
is used, charcoal is stacked inside the at least one containing
layer (30) and the bottommost layer (20) and into the base (41) of
the grill assembly (40). After igniting some charcoal inside the
roaster, fresh air automatically enters all the containing layers
(30) and the bottommost layer (20) because heat generated by the
burning charcoal raises and draw fresh air through the multiple
ventilating holes (242, 322). Therefore, all charcoal in each layer
(20, 30) is exposed to plenty of fresh air to make the combustion
complete. Moreover, the lower inclined walls on each containing
layer (30) direct the fresh air entering initially downward so deep
places are exposed to fresh air.
[0023] The charcoal roaster as described has the following
advantages:
[0024] 1. Adding or removing containing layers on the stand makes
the quantity of charcoal adjustable.
[0025] 2. The multiple ventilating holes in each containing layer
and the bottommost layer allow air entering the charcoal roaster to
contact the charcoal in each containing layer and particularly to
contact the charcoal deep in the bottommost layer. Therefore, the
charcoal in the charcoal roaster burns efficiently without needing
to be stirred.
[0026] 3. Unlike igniting the charcoal before filling, the charcoal
can be placed into the containing layers without preheating and is
ignited quickly because the multiple ventilating holes allow the
air flowing through the charcoal roaster entirely. Therefore,
barbecuing food with the present charcoal roaster does not waste
time in waiting of igniting the charcoal.
[0027] Although the invention has been explained in relation to its
preferred embodiment, it is to be understood that many other
possible modifications and variations can be made without departing
from the spirit and scope of the invention as hereinafter
claimed.
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